Explosive-engine.



J. J. SHIVELY. EXPLOSIVE ENGINE. APPLICATION FILED MAY 26, 1910.

2 SHEBISSHEET l.

Patnted 00 7, 1913.1

J. "J. SHIVELY.

EXPLOSIVE ENGINE.

APPLICATION FILED MAY 26, 1910.

1,@75,30r7. w Patented 0ct.7,1913. 2 SHEETSSHBET 2.

JOHN JOE-L SHI'VELY.- or wA'sHmG'rom nIsTn-Icr or coLuMBr A.

EXPLOSIVE-ENGINE.

1,075,301. Specification of Letters new. Patented (let. a, 1.913,

Application filed may 26, 1919'. Serial No. 563,654.

,To allwhomeq may concern insure'a complete expulsion er the uncon Beitflknwjn that I, Joi-nv Joni Sgrvnry, sunr'ed gasesand to-otherwise enhance the. a c1t1zen of the United States, and a resident efiiciency of the engine.

of Washington, in the'District'of Columbia, A; main 'or crank shaft 1-1, is suit-ably 6 I havei'nvented a certain newand; useful E mounted in thecr-ank case, and its crank 12, plosive-Engineyef which the following is a isoperativel'y connected by means of a rod specification. H p 713, With the lower 'piston 10. The crank .One of the principal objects is to dispense shaft carries the usual balance or fly-wheel with crankrcase'eompres sion." I a 14, and is furtherequipped with a disk "or Another object is to secure maximum efii- Wheel 15, that istermed. or provided with ciency by effecting the compression ,inthe -c0g teethlti, for substantially a'quartenoi cylinder and'out of contact with'lubricating its circumference, and "the pur ose of which oil. f d I w is toefiectfi movement 01; the upper piston Another'object is to-eft'ecta complete eX- at a certain predetermined time. This is pulsion from the engine cylinder of burnt provided for as follows: Avertical or drivegases and other productsof combustio shaft 17 sustained-in suitable bearings '18. Anotherobject is to secure. a power stroke" 'carries' at its" respective-ends small. bevel at each revolution fot the shaft. gears 19, and 20, Whereofthe gear 1,9,is in Other objects, as well as the nature, char'-' mesh. attirnes with the teeth'16, and at other 5' acteristic features and scope of the invention times is idle, a'ndwhereof the gearQO, is in will, be more, readily understood frornthe mesh with a gear 21 carried bya small following description, taken'in connection crank shaft 22. The latter may be sup-,- with t eaccompanying drawings forming a portedin'a suitable hearing at or near the part-hereof, wherein top of thecylinder, audits crank-23, is opt Figure 1, is a sectional View of an internal eratively connected with the upper piston by combustion engine embodying features of 'arod or lever 24, which is accommodated-by my invention, the; cylinder belng shown in a slot 25. The crank 23, is provided with the act of exhausting. Fig; 2, is asimilar' 'ac'ounter-balance weightgfi', the function of View with the parts in position for 'a'c'oniwhich is to promptly,liftlthelupper piston as 5 pression stroke; and Fig.3,is an'elevational soon as the disk .15, becomes..;idle. Obvi- View showing more particularly the-main ously, the .operative'position of fthe. disk 15, shaft, top shaft, and intermediate power. is opposite that of the throw'ot'ithe' crank 23. transrnisslon I p p Retjerring to the drawings, the numeral during the compression stroke 01' t e 1p.- 1, -'represents a suitable cylinder mou nted' -wa'rd stroke of the power piston 10, the pisupon a": crank case- The cylinder '-is 11 9,'1,s at restart he op o ecy mder, equipped with an inlet port 3, and 'itscom-* because the-geared part of the d sk 15, is plemental valve 4, and, with an outlet port, removed from-the gear wheel 19- and-conseor'exhaust 5, and its complemental valve 6; .quently 'shaft'17 is idle. Upon the downi The valves land 6, are normallyheld a ainst ward-stroke of pie springs ,7, audit w ton 10,- the gearedpart their seats under the solicitationzo coil' .16, of, disk15, approaches and ngages' gear ill -be'funderstood that the wheel 19, and transmits motion to shaft 17',

intake valve is liftedfromits seat by suction so that the upper piston. Q, is forced ;dowi 1- established in the cylinder-by the upward 7 wardi This stroke of pistongg tends to posi- '5 movement. of the piston. an

' The cylinder is further equipped with. a

' to obviate *c'ra d that the valve ,tively close thefintakevalveiand open the 6, is opened by a downward strokerof the ekhaust and to expelthe spent gases. upper piston, which at; thefsame time posi the PlSt-Oll 9,-returns to its original or positively insures the closing of the intake valve. t1on of rest- 1t tends to open the ntake valve s ark plug 8. '.'The'parts mentioned may be by; the piston 10. The counter-balance 0% any suitable or w-ell" known construction we1ght 26, 1115111135 this return or suction and material; c v stroke-of PIStO H QP a There are two pistons, an upper piston 9, The operation if not obvlous will be anda lower-piston 10, an

nk case compress onand to' 'Itmaybe added that a gas tight space between-the pistons-when both efiect the" compression the cylinder, to 'isformed Referring to'Fig 2,-it will, be noted that Y andadmit a fresh charge for compressiond' their purpose is largely imderstood irom the foregoing.

haust valvefrom opening prematurely and 10 are at'the' top olfitheir' strokes which the I gas, sucked the upper piston; is ,CO IIl-' pressed by- -the lower 'piston and .then ex-,

ploded inthe. well known manner; Du ing "the down stroke the exhaust 'valve-is'opened by compression andt-he upper piston open a te,s 1-, completely expel the ,nnconsumed' gases. Provision is made to prevent the, ex-

this accomplished bya positively operated 'lpcking'detentL This 'may be in the form'of a rod or detent 27, which when advanced holds the valve to its seat, but which under the "influence of} av springq28', is retracted. Therod 27,l, is suitably mounted and extends downv in proximity withthe ihain shaft, and a-ca'm 29, 'onjsaid shaft is arranged to bear uponapivotal aim or tappet v30,- which'in turn bears 'upon the end of the-rod or detent 27,1 and-operates to advance the same.

It will bej-obvious to thoseskilledi in ,the art that various changes and modifications may be'made without departing from the spirit and-scope of the invention. Hence' the same is. notlimit'e'd ether than required by the prior-state of. the art.

- at ms.

Having I described j the fnatui'e 'and objectsof the invention, what I c1aim as new and v desire to secureby'Lettei-"s Patent"is:-.

-compl'emental ports, e e pistons 'ai i anged within said" "c'ylin etone above the other and whereof the, ower is operatedby the In an exjil'osive engine, a eylinder-andits" explosion, a crank-shaft operatively clonq nect'ed"'with the lower or power :piston,"a

disk carried by saidjcrank=shaft and provid'e'd with teethfor. a- 'quarter of its circumidle.

In; testimony-whereof I have hereunto -',signed my'name in. the presence of two -sub- .scribing'witnesses'." I v a JOHN JOEL SHIVELY;

Witnesses; 

